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Discovery of Nine Gamma-Ray Pulsars in Fermi Large Area Telescope Data Using a New Blind Search Method
Caraveo, P. A.; de Luca, A.; Belfiore, A. +28 more
We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting continuous gravitational waves from rapidly rotating neutron stars. Designed to find isolated pulsars spinning at…
A Comprehensive View of a Strongly Lensed Planck-Associated Submillimeter Galaxy
Smail, I.; Pérez-Fournon, I.; Ivison, R. J. +48 more
We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS J114637.9-001132 is selected from the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) as a strong lens candidate mainly based on its unusually high 500 µm flux density (~300 mJy). It is the only …
Dielectric map of the Martian northern hemisphere and the nature of plain filling materials
Pommerol, Antoine; Kofman, Wlodek; Clifford, Stephen M. +2 more
A number of observations suggest that an extended ocean once covered a significant part of the Martian northern hemisphere. By probing the physical properties of the subsurface to unprecedented depth, the MARSIS/Mars Express provides new geophysical evidences for the former existence of a Late Hesperian ocean. The Vastitas Borealis formation, loca…
Nonlinear pitch angle scattering of relativistic electrons by EMIC waves in the inner magnetosphere
Omura, Yoshiharu; Zhao, Qinghua
We derive the second-order resonance condition for interaction between a relativistic electron and a coherent Electromagnetic Ion Cyclotron (EMIC) wave with a variable frequency. We perform test particle simulations of relativistic electrons interacting with EMIC waves with a fixed frequency and a rising-tone frequency such as EMIC triggered emiss…
Herschel observations of B1-bS and B1-bN: two first hydrostatic core candidates in the Perseus star-forming cloud
Hill, T.; White, G. J.; Könyves, V. +24 more
We report far-infrared Herschel observations obtained between 70 µm and 500 µm of two star-forming dusty condensations,
Two Types of Magnetic Reconnection in Coronal Bright Points and the Corresponding Magnetic Configuration
Ding, M. D.; Guo, Y.; Chen, P. F. +2 more
Coronal bright points (CBPs) are long-lived small-scale brightenings in the solar corona. They are generally explained by magnetic reconnection. However, the corresponding magnetic configurations are not well understood. We carry out a detailed multi-wavelength analysis of two neighboring CBPs on 2007 March 16, observed in soft X-ray (SXR) and EUV…
Submillimetre photometry of 323 nearby galaxies from the Herschel Reference Survey
Clements, D. L.; Ciesla, L.; Buat, V. +23 more
The Herschel Reference Survey (HRS) is a guaranteed time Herschel key project aimed at studying the physical properties of the interstellar medium in galaxies of the nearby universe. This volume limited, K-band selected sample is composed of galaxies spanning the whole range of morphological types (from ellipticals to late-type spirals) and enviro…
On Absorption by Circumstellar Dust, with the Progenitor of SN 2012aw as a Case Study
Kochanek, C. S.; Dai, X.; Khan, R.
We use the progenitor of SN 2012aw to illustrate the consequences of modeling circumstellar dust using Galactic (interstellar) extinction laws that (1) ignore dust emission in the near-IR and beyond, (2) average over dust compositions, and (3) mischaracterize the optical/UV absorption by assuming that scattered photons are lost to the observer. Th…
[C II] Line Emission in Massive Star-forming Galaxies at z = 4.7
Maiolino, R.; Iono, D.; Walter, F. +20 more
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the [C II] 157.7 µm fine structure line and thermal dust continuum emission from a pair of gas-rich galaxies at z = 4.7, BR1202-0725. This system consists of a luminous quasar host galaxy and a bright submillimeter galaxy (SMG), while a fainter star-forming galaxy…
Hubble Space Telescope studies of low-redshift Type Ia supernovae: evolution with redshift and ultraviolet spectral trends
Gal-Yam, A.; Sullivan, M.; Nugent, P. E. +26 more
We present an analysis of the maximum light, near-ultraviolet (NUV; 2900 < λ < 5500 Å) spectra of 32 low-redshift (0.001 < z < 0.08) Type Ia supernovae (SNe Ia), obtained with the Hubble Space Telescope (HST) using the Space Telescope Imaging Spectrograph. We combine this spectroscopic sample with high-quality gri light curves obtained…